No single best amplifier here. What decides it is what you have to drive, what you need to plug in, and how much of the system you want in one box.
| Area | Better | Why |
|---|
| Power | evenly matched | Effectively the same output - 60W against 60W into 8 ohms is under 1dB, which is not an audible difference in loudness. |
| Grip on hard loads | B | WiiM Amp Pro holds up better into a 4-ohm load: its output nearly doubles to 120W, where the other increases strongly. That matters with demanding speakers far more than the 8-ohm figure does. |
| Noise floor | A | Emotiva BasX TA1 is the quieter design on paper - 120dB against 105dB. Audible mainly with sensitive speakers in a quiet room. |
| Built-in DAC | evenly matched | Both have a DAC on board with much the same capability. |
| Phono stage | depends | Emotiva BasX TA1 has a built-in phono stage (MM) and WiiM Amp Pro does not. Decisive if you own a turntable, completely irrelevant if you do not - and an outboard phono stage is easy to add later either way. |
| Use with a TV | depends | Only WiiM Amp Pro has HDMI ARC, so the television can drive it directly and one remote controls the volume. If the system is for music only, this changes nothing. |
| Room to grow | evenly matched | The same expansion options on both. |
| Amplifier class | depends | Emotiva BasX TA1 is Class A/B and WiiM Amp Pro is Class D. Class A/B runs warm and is the long-established mainstream choice; Class D runs cool and draws almost nothing at idle. Modern examples of both measure well - judge by the rest of the page. |
| Shelf space | depends | WiiM Amp Pro takes up about 69% less shelf area (420cm² against 1371cm²), and it is 98mm shallower, which is the measurement that decides whether a rack door shuts. |
| Price | B | WiiM Amp Pro costs less - $379 against $499 at list. |
| Watts per dollar | B | WiiM Amp Pro is the cheaper watt - about $6 per watt against $8. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A Emotiva BasX TA1 B WiiM Amp Pro
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both amplifiers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
WiiM Amp Pro has the edge on paper, though not by much. The rows marked "depends" are more likely to decide this than the score is. If your speakers are a difficult load - 4 ohms nominal, big woofers, or a sensitivity in the low 80s - WiiM Amp Pro is the safer partner, because how an amplifier behaves when the impedance drops matters more than its 8-ohm rating. If you play records, Emotiva BasX TA1 saves you buying a phono stage; if you do not, ignore that row entirely.
What a spec sheet cannot show: how either sounds with your speakers, how the controls feel day to day, and what the app is like to live with - which is where most all-in-one amplifiers are actually won or lost. Power figures are the manufacturers' own and are not measured to a common standard, so treat small differences as noise. If you can hear both, that will tell you more than any row above.